21166856

素因数分解:

$2^3\times {\mathrm{523}}^1\times {\mathrm{5059}}^1$

素因数の和:5588

約数の個数: 16

約数和(自身を含む): 39771600

約数和(自身を除く): 18604744

約数列:

[1, 2, 4, 8, 523, 1046, 2092, 4184, 5059, 10118, 20236, 40472, 2645857, 5291714, 10583428, 21166856]

約数ペア:

[(1, 21166856), (2, 10583428), (4, 5291714), (8, 2645857), (523, 40472), (1046, 20236), (2092, 10118), (4184, 5059)]